Not a generally a fan of integrated seatposts but if it was to be an off the rack the Carrera Ilos would be my no 1. Gorgeous. Custom (which as a tall guy I prefer) would be a Serotta 1,2 and 3. Can't tell you that they are the best, I just love 'em.
http://www.cyclingnews.com/photos/20...Mil06-Carrera1
http://www.carrera-podium.it/eng/ilos.html#